Vent assembly

Abstract

A vent assembly ( 200 ) comprises a housing ( 13 ), a flow conduit ( 10 ) and a weather hood ( 12 ), the flow conduit ( 10 ) having a proximal end ( 10 A) for being fluidly connected to a source of material and an open distal end ( 10 B), the housing ( 13 ) having a base portion ( 13 A), a side wall portion ( 13 B), and a top portion ( 13 C), the flow conduit ( 10 ) comprising a baffle ( 12 E) located between the base portion ( 13 A) and the top portion ( 13 C) of the housing ( 13 ) to direct fluid flowing from the flow conduit ( 10 ) towards the weather hood ( 12 ) and through the housing ( 13 ) in a direction towards the top portion ( 13 C) of the housing ( 13 ).

The invention claimed is: 
     
       1. A vent assembly comprising a housing, a flow conduit and a weather hood, the flow conduit having a proximal end for being fluidly connected to a source of material and an open distal end, the housing having a base portion, a side wall portion, and a top portion, the flow conduit comprising a baffle located between the base portion and the top portion of the housing to direct fluid flowing from the flow conduit towards the weather hood and through the housing in a direction towards the top portion of the housing, wherein the weather hood has a transverse dimension greater than a transverse dimension of a distal edge of the baffle, wherein the baffle extends beyond the distal end of the flow conduit. 
     
     
       2. The vent assembly according to  claim 1 , wherein the baffle directs the fluid flowing from the flow conduit in a vertical direction and towards the top portion of the housing, optionally towards a periphery of the top portion of the housing. 
     
     
       3. The vent assembly according to  claim 1 , wherein the baffle extends endlessly around a periphery of the flow conduit. 
     
     
       4. The vent assembly according to  claim 1 , wherein the flow conduit comprises a flange located at or adjacent the distal end and the baffle is secured to the flange. 
     
     
       5. The vent assembly according to  claim 1 , wherein the flow conduit comprises a tubular portion of constant cross section and the baffle extends outwardly around the tubular portion. 
     
     
       6. The vent assembly according to  claim 1 , wherein an internal angle defined between the flow conduit and the baffle is acute. 
     
     
       7. The vent assembly according to  claim 1 , wherein the baffle is provided with or comprises one or more baffle drainage ports. 
     
     
       8. The vent assembly according to  claim 1 , wherein the base portion of the housing comprises one or more drainage ports. 
     
     
       9. The vent assembly according to  claim 1 , wherein the weather hood has a flow conduit-facing face and an environment-facing face, and the weather hood further comprises a drainage channel or tube in communication with the environment facing face. 
     
     
       10. The vent assembly according to  claim 1 , wherein the weather hood is attached to the side wall portion of the housing, optionally connected by a perforate member and/or support bars. 
     
     
       11. The vent assembly according to  claim 1 , further comprising a flame arrester assembly. 
     
     
       12. The vent assembly according to  claim 1 , further comprising one or more of a pressure relief valve, a vacuum relief valve, a combined pressure relief/vacuum relief valve. 
     
     
       13. A vent assembly comprising a housing, a flow conduit and a weather hood, the flow conduit having a proximal end for being fluidly connected to a source of material and an open distal end, the housing having a base portion, a side wall portion, and a top portion, the flow conduit comprising a baffle located between the base portion and the top portion of the housing to direct fluid flowing from the flow conduit towards the weather hood and through the housing in a direction towards the top portion of the housing, wherein the weather hood has a transverse dimension greater than a transverse dimension of a distal edge of the baffle, wherein an open top of the housing is covered, at least in part by a gauze or mesh or plate comprises perforations or apertures. 
     
     
       14. A vent assembly comprising a housing, a flow conduit and a weather hood, the flow conduit having a proximal end for being fluidly connected to a source of material and an open distal end, the housing having a base portion, a side wall portion, and a top portion, the flow conduit comprising a baffle located between the base portion and the top portion of the housing to direct fluid flowing from the flow conduit towards the weather hood and through the housing in a direction towards the top portion of the housing, wherein the weather hood has a transverse dimension greater than a transverse dimension of a distal edge of the baffle, wherein the weather hood has a depending wall formed at or towards its periphery and the depending wall is provided with a secondary baffle, which is outwardly directed. 
     
     
       15. The vent assembly according to  claim 14 , wherein the secondary baffle extends outwardly around the entire depending wall. 
     
     
       16. The vent assembly according to  claim 15 , wherein an internal angle defined between the depending wall and the secondary baffle is acute. 
     
     
       17. The vent assembly according to  claim 14 , wherein the secondary baffle comprises one or more drainage apertures or drainage tubes or channels.